My husband and I have not have sex for over a year because I was pregnant for 9 months and had health issues so we could not have sex during pregnancy. I am now 3 months postpartum and not sure when my fertility will return. I gave birth by cesarean so it’s not safe to have another baby until 18 months. My question is, can Catholic married couples use contraception in a situation like this? I don’t want my husband to masturbate if I keep him waiting